(SQL Server) Transition from Http.PostJson3 to Http.HttpJson

Provides instructions for replacing deprecated PostJson3 method calls with HttpJson.

Note: This example requires Chilkat v11.0.0 or greater.

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows

-- Important: See this note about string length limitations for strings returned by sp_OAMethod calls.
--
CREATE PROCEDURE ChilkatSample
AS
BEGIN
    DECLARE @hr int
    DECLARE @iTmp0 int
    -- Important: Do not use nvarchar(max).  See the warning about using nvarchar(max).
    DECLARE @sTmp0 nvarchar(4000)
    DECLARE @http int
    -- Use "Chilkat_9_5_0.Http" for versions of Chilkat < 10.0.0
    EXEC @hr = sp_OACreate 'Chilkat.Http', @http OUT
    IF @hr <> 0
    BEGIN
        PRINT 'Failed to create ActiveX component'
        RETURN
    END

    DECLARE @url nvarchar(4000)
    SELECT @url = 'https://example.com/something'
    DECLARE @contentType nvarchar(4000)
    SELECT @contentType = 'application/json'
    DECLARE @json int
    -- Use "Chilkat_9_5_0.JsonObject" for versions of Chilkat < 10.0.0
    EXEC @hr = sp_OACreate 'Chilkat.JsonObject', @json OUT

    DECLARE @success int
    EXEC sp_OAMethod @json, 'LoadFile', @success OUT, 'C:/temp/requestBody.json'

    -- ------------------------------------------------------------------------
    -- The PostJson3 method is deprecated:

    DECLARE @responseObj int
    EXEC sp_OAMethod @http, 'PostJson3', @responseObj OUT, @url, @contentType, @json
    EXEC sp_OAGetProperty @http, 'LastMethodSuccess', @iTmp0 OUT
    IF @iTmp0 = 0
      BEGIN
        EXEC sp_OAGetProperty @http, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @http
        EXEC @hr = sp_OADestroy @json
        RETURN
      END

    -- ...
    -- ...

    EXEC @hr = sp_OADestroy @responseObj

    -- ------------------------------------------------------------------------
    -- Do the equivalent using HttpJson.
    -- Your application creates a new, empty HttpResponse object which is passed 
    -- in the last argument and filled upon success.

    DECLARE @responseOut int
    -- Use "Chilkat_9_5_0.HttpResponse" for versions of Chilkat < 10.0.0
    EXEC @hr = sp_OACreate 'Chilkat.HttpResponse', @responseOut OUT

    DECLARE @success int
    EXEC sp_OAMethod @http, 'HttpJson', @success OUT, 'POST', @url, @json, @contentType, @responseOut
    IF @success = 0
      BEGIN
        EXEC sp_OAGetProperty @http, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @http
        EXEC @hr = sp_OADestroy @json
        EXEC @hr = sp_OADestroy @responseOut
        RETURN
      END

    EXEC @hr = sp_OADestroy @http
    EXEC @hr = sp_OADestroy @json
    EXEC @hr = sp_OADestroy @responseOut


END
GO